The Japanese surnames etymology dictionary.
Shizuoka-ken , Kanagawa-ken , Toukyou-to . Thing . From the door of the soil. Tell them that they had defended themselves with earth door to prevent attacks of fire arrows during the war. Estimated in the Warring States Period. Location unknown. Shizuoka-ken Fukuroi-shi Kawai - kai , Nagano-ken Kamiina-gun Minowa-machi There is distribution in the Nankai ring . Chiba - ken Katori - shi Tell the radish that you were engaged in agriculture. Estimated in the Edo period.